class_docstr: Base class for training strategies.
code: def model_init_context(self):
      return nullcontext()
  
imports: from abc import ABC, abstractmethod
  from contextlib import nullcontext
  from typing import Callable, Dict, List, Optional, Tuple, Union
  import torch
  import torch.nn
  from coati.experience_buffer import ExperienceBuffer
  from torch.optim import Optimizer
  from torch.utils.data import DataLoader
  from transformers.tokenization_utils_base import PreTrainedTokenizerBase
  from colossalai.booster import Booster
  from colossalai.booster.plugin import Plugin
  from .sampler import DistributedSampler
label_desc: Use image node_id 7 for calling the Strategy obj's underlying member method code with example usage: obj.model_init_context() and returns: nullcontext